Hole-punching and eyelet-setting machine



B, HALL.

HOLE PUNGHING AND EYELET SETTING MACHINE Filed March 15, 1923 2 Sheets-Sheet 1 s. HALL.

HOLE PUNCHINCT AND EYELET SETTING MACHINE Filqd M31701! 1.5 1923 2 Sheets-Sheet 2 Patented Dec. 2, 1924.

BIGKNELL HALL, OF ABINGTON, IIIASSAGHUSETTS.

HOLE-PUNCHING AND EYELET-SETTllNG MACHINE.

Application filed March 15,1928.

' ing and eyelet setting operation.

A further object is generally to improve the construction and operation of eyelet setting machines.

Briefly, the machine embodying the invention comprises a pair of rotatable members which form complemental dies for hole punching, and other complemental dies for eyelet setting, withmeans to move said sets of dies alternately into the same operating position and operate them without moving the material operated upon.

Fig. 1 is a side'elevation partly in section of a machine embodying theinvention.

Fig. 2 is a plan view of Fig. 1.

Fig. 3 is a front elevation of the machine of Fig. 1, the eyelet kettle or hopper being broken away.

Fig. 4: is a section along line H of Fig. 1.

Fig. 5 is a sectional elevation, partly diagrammatic, of various parts of the machine in the position for hole punching.

Fig. 6 is a view similar to Fig. 5 but with the various parts of the machine in the position for eyelet setting.

Fig. 7 is a detail of the lower eyelet setting die in position to move the eyelet into the previously formed hole in the material, the eyelet raceway being withdrawn.

Fig. 8 is a vertical detail of the eyelet setting dies in final position and with the eyelet set.

As here shown, the machine embodying the invention comprises the supporting frame 10 having the spaced standards 11 and 12 in which the main driving shaft 13 is journalled. Said shaft may be operated in any suitable manner and, as here shown, the operating means includes a pulley 14 which is-loosely mounted upon said shaft and may rotate freely thereon or be locked Serial No. 625,346.

for conjoint rotation therewith. Said pulley is adapted to be rotated by a belt and source of power or other suitable means, not necessarily shown.

A clutch mechanism is or may be arranged to connect and disconnect said driving pulley 14: with the shaft 13; and said clutch mechanism may include a yoke 15 pivotally connected with and extended laterally from said shaft. Said yoke is adapted to engage any one of a plurality of clutch teeth 16 carried by said pulley 14 whereby to connect said pulley for driving relation with the shaft. I

Means including a tripping lever 17 is or may be provided to govern the engagement of said yoke 15 with the pulley. Said tripping lever may include a cam extension 17 which is adapted normally to be so positioned as to move said yoke 15 out of engagement with the clutch teeth 16. i

Said tripping arm 17 is adapted normally to be in such position as to engage and hold said yoke 15 from rotation whereby to restrain said shaft 13 from rotation and in such position, the various parts of the mechanism will be held in an operative position. lVhen said tripping lever 17 is actuated as by the depression of a pedal or other convenient means which may be connected to said tripping lever through a link 18, said lever is moved from its restraining position beneath said yoke, and thereby permits said yoke to engage the clutch teeth 16 under action of the spring 19, and also to rotate. The clutch mechanism illustrated herewith is more or less common in the art and the construction and operation thereof will be clear without further description.

The dies forhole punching and eyelet setting are or may be carried in slide blocks 20 and 21 'which'are preferably disposed one above the other and are carried in rotatable cylindrical heads or housings 22 and 23 respectively, and said blocks are adapted to be reciprocated in slots formed in the side walls of said heads. Cover plates 24 and 25 are or may be secured over the open ends of saidheadswhereby-to enclose said heads and retain said slide blocks 20 and 21 in operative position in the slots. The ends of said slide blocks, are adapted to be extended outwardly beyond said heads 22 and 23 and one end of said slide block 20 is adapted-to support an eyelet setting die 26 while the complementary end of said lower slide block 21 is adapted to support a complemental eyelet setting die 27. The other end of said upper slide block is adapted to carry a punch 28 while the other end of said lower slide block 21 is adapted to carry the complemental punch die 29.

Said heads 22 and 23 are adapted to be revolved in unison whereby to position one set of dies as the punch 28 and its die 29, into operative relation. The rotation of said heads is then arrested whereby to hold said dies in such relation until the slide blocks 20 and 21 have been reciprocated inwardly and outwardly to effect one operation, as the punching operation. After this operation, said heads 22 and 23 are again rotated for one half revolution to bring the eyeletsetting dies and 27 into operative relation, and the rotation of said heads is again arrested whereby to hold said slide blocks in position to be reciprocated to effect the eye let setting operation. A complete revolution of said heads 22 and 23 is therefore made up of two half-revolutions and at each half revolution and before the next half revolution either a punching operation or an eyelet setting operation is completed.

The work to be operated upon may be supported upon a table 30 which is or may be formed with a slot 31 therein through which the dies carried by the slide blocks may be moved to effect the various operations, Preferably the inner edge of said table 30 is provided with a lip which serves to define the position of theedge of the material operated upon and also to strip the material from the dies as said dies are being withdrawn. Said table 30 is or may be provided on its underside with depend ing extensions 33 in which table-supporting rods 34 are received; and said table is or may be slidably supported on said rods toward and away from the dies; and said table may be secured in adjusted position on said rods by suitable means as the thrust screw 35. Said supporting rods 34 are or may be secured to the front standard 36 of the frame 10. p

The intermittent driving means for the heads 22 and 23 may include the tubular members 37 and 38 to which said heads are fixed; and said tubular members 37 and 33 are or may be extended through and journalled in bearing supports 39 and 40, which latter may be integrally formed with the frame 10 of the machine and extended between the standards 11 and 36. Each of the tubular driving members 37 and 38 is preferably independently driven from the shaft 13 by a separate pair of intermittent gears. For this purpose, the upper driving member 32' has an intermittent gear 41 fixed thereto at the rear end thereof; and said gear 41 is arranged in driving relation with an intermittent driving gear 42 fixed to the shaft 13. The lower tubular driving tube 33 is similarly provided with an intermittent driving gear 43. fixed thereto at the rear end thereof and said gear 43 is arranged to be driven by an intermittent driving gear 44 also fixed to said shaft 13. Said gears 41 and 43 are or may be identical in construction, as are or may be said driving gears 42 and 44. Said latter gears, however, are fixed to said shaft 13 at different angular relation with each other in order that the gears driven by them may effect the substantially simultaneous-control of the heads 22 and 23; and preferably the angular displacement of said gears should be substantially equal to the angle subtended between the axes of said tubular driving members 37 and 38 and the driving shaft 13.

Said upper intern'iittent gear 41 is or may be formed or provided with two sets of gear teeth 41 separated by opposed dwell portions 41". The lower intermittent gear 43 is or may be similarly formed with opposed sets of gear teeth 43 separated by opposed dwell portions 43 The intermittent driving gear 42 for the upper gear 41 is similarly formed with two opposed sets of gear teeth 42 separated by opposed dwell portions 42 and 42 The driving gear 44 for the lower intermittent gear 43 is, in the same manner, formed with two opposed sets of gear teeth 44 separated by the opposed dwell portions 44 and 44. The gear teeth and dwell portions of the respective driving and drivei'i intermittent gears are adapted to be such that, as the driving intermittent gears continually rotate in the direction indicated by the arrow, Fig. 3, the driven interi'nittent gears are rotated 180, then held against rotation for a corresponding pedod of time and then again rotated for 180, and again held from rotation for a corresponding period of time and so on. The arrangement is such that both driven intermittent gears are rotated simultaneously and are also held from rotation for the same periods of time. During the period that the driven intermittent gears, and consequently the heads 22 and 23, are held from rotation, the slide blocks 20 and 21 supported by said heads are reciprocated inwardly and outwardly whereby to perform the hole punching oper' ation or the eyelet setting operation as the case may be.

The actuating means for said slide blocks 20 and 21 comprises a shaft for said upper guide block and a similar shaft 51. for said lower guide block. Said shafts 50 and 51 are journalled in said tubular driving members 37 and 38 and are co-axial therewith and extend through and beyond the rear ends thereof and also beyond the intermittent gears carried by the rear ends of said tubular driving members.

Pinion gears 52 and 53 of equal. diameter are fixed to said shafts 50 and 51 respectively and are arranged in continuous mesh with a driving gear 54 fixed to said shaft Said gear 54 is arranged for continuous, as against intermittent, driving connection with said pinion gears 52 and 58. Said pinion gears 52 and 53 are adapted to be of the same pitch diameter as said intermittent gears 42 and 44 whereby, under certain conditions, said shafts 50 and 51 and tubular driving members 37 and 38 may be rotated conjointly and at the same angular speed and consequently said slide blocks 20 and 21 will be without motion with respect to their respective heads.

Said drive shafts 50 and 51 are or may be formed with enlarged heads or flanges 55 and 56 which may be received within the recesses of said heads 22 and 23 and serve to restrain said shafts against axial movement rearwardly. Crank pins 57 and 58 are fixed to and extended forwardly from said heads or flanges 55 and 56 and are eccentrically disposed with regard to the axes of said shafts 50 and 51. Said crank pins 57 and 58 are or may be disposed in blocks 59 and 60 which blocks are slidably received in slots 61 and 62, which slots are extended transversely across the rear faces of said slide blocks 20 and 21. It will be apparent that with this arrangement, said shafts 50 and 51 are rotated, said crank pins will cause said slide blocks to be reciprocated within their respective heads 22 and 23.

In Fig. 3, the mechanism is arranged in position to begin the hole punching strokes of the slide blocks. The intermittent gears 42 and 44 have been rotated to a position wherein a dwell portion thereof is in engagement with a corresponding dwell portion of the intermittent gears 41 and 425 and said latter gears and consequently the heads 22 and 23 will be held against rotation as said driving gears 42 and 44 continue to rotate. In this position, the upper and lower crank pins 57 and 58 respectively are arranged in superposed horizontal planes which include the axes of their respective drive shafts; and are in position to move the upper and lower slide blocks inwardly or toward each other. Inasmuch as the continuous driving gear 54 for said shafts 50 and 51 is constrained to rotate conjointly with said intermittent driving gears, said upper crank pin will be rotated downwardly in a counterclockwise direction and said lower crank pin will be rotated upwardly in a counterclockwise direction and, consequently, said upper and lower slide blocks will be moved inwardly to effect the hole punching operation.

At the extreme part of the stroke of said slide blocks their respective positions may be as illustrated in Fig. 5 and the disc punched out may escape through a channel 65 in the slide block 21, which channel may register with an aperture 66 in the cover plate 25. The rotary movement of the shafts 50 and 51 is not arrested when the slide blocks are in their most inward position but continues for another quarter of a revolution or until the slide blocks are again in mid-position in their respective heads. At this point, the intermittent driving gears 42 and 44 have advanced while in contact with the dwell portions of their respective driving intermittent gears 41 and 43 to such a point that the gear teeth of said driving intermittent gear are moved into engagement with the corresponding gear teeth of their respective intermittent gears. Consequently, the heads 22 and 23 are now rotated and, since the heads, and the shafts 50 and 51 are rotated at the same angular speed, there is no change in the relative position ofsaid slide blocks in their respective heads during this rotational movement. When the heads 22 and 23 have been rotated one-half revolution and the dwell portions of their respective driving and driven intermittent gears are again disposed in holding contact with each other, the rotation of said heads is again arrested, and said heads are held from rotation in such position that the second set of dies, as the eyelet setting dies, are disposed in operative relation one above the other. The shafts 50 and 51, however, continue to rotate and consequently said slide blocks are moved inwardly and thence outwardly to effect a complete eyelet setting op eration. The position of the eyelet setting dies prior to the inward movement of the slide blocks to set the eyelet is illustrated in Fig. 6 and in this position, the slide blocks have been rotated 180 from the hole punching position illustrated in Fig. 5.

A complete operation of the machine from a position where the slide blocks are in position to begin the hole punching operation may include the inward movement of said slide blocks and their succeeding outward movement to complete the hole punching operation, the conjoint rotation of the heads 22 and 23 with the slide blocks, the arresting of the rotation of the heads with the eyelet setting dies in operative relation, the inward and outward strokes of the slide block to complete the eyelet setting operation, and the subsequent conjoint rotation of said heads and slide blocks to restore the mechanism into a position for the hole punching operation.

Eyelets may be supplied to the eyelet setting dies in any suitable manner. As here shown, the eyelets are or may be contained in a kettle or hopper 7 0 from which an eyelet raceway 71 extends into a position to deliver the eyelets to the lower eyelet setting tool '27. Said hopper and raceway are or may be mounted upon a reciprocating bracket 73, which latter may have a laterally extended ear 74 which is slidably disposed on the rearwardly extended end of the upper drive shaft 50. The lower end of said bracket 73 may be formed with an car 75 which is slidably received on a guide rod 76, which latter may be extended between and secured in the spaced standards 36 and 11 of the frame of the machine. Said bracket 73, and consequently the raceway, may be rcciprocated by a cam 77 secured to the forward end of the drive shaft 13. Said cam may have a cam slot 78 therein in which a pin 7 9 is received, and said pin may be secured fixedly to and laterally extended from the bracket 7 The cam 77 is or may be so arranged as to move the eyelet raceway 71 forwardly to deliver an eyelet in position to be received on the pin 27 of the lower eyelet tool and then to withdraw said raceway clear of said die to permit said die to be moved upwardly to set the eyelet.

The structure may be otherwise modified without departing from the spirit of the invention.

I claim:

1. An eyeletsetting machine having a set of cooperating hole-forming members, a set of cooperating eyelet-setting members, and means to rotate each set alternately into the same position for operation and reciprocate the cooperating members of each set.

2. A hole-punching and eyelet-setting machine having the combination of a holder adapted to support hole-punching and eyelet setting dies at its opposite ends, and means to rotate said holder into and out of a predetermined position and reciprocate said holder when in said position including rotatable means arranged continuously to reciprocate said holder and other means rotatable concentrically with the aforesaid rotatable means and arranged intermittently to rotate said holder.

8. A hole-punching and eyelet-setting machine having the combination of a holder adapted to support hole-punching and eyelet setting dies at itsopposite ends, and means to rotate said holder into and out of a prede termined position and reciprocate said holder when in said position including rotatable means arranged continuously to reciprocate said holder, other means rotatable eoncentrically with the aforesaid rotatable means and arranged intermittently to rotate said holder, and means normally to rotate both rotatable means at substantially the same angular Velocity.

4;. The combination of a reciprocable die holder, a rotatable support in which said holder is reciprocable, means to rotate said support, rotatable means to reciprocate said holder, both means arranged normally to rotate at substantially the same angular velocity, whereby to hold the die holder without reciprocatory movement in said support, and means to vary the angular velocity between the aforesaid means, whereby to reciprocate the holder in said support.

5. A holepunching and eyelet-setting machine having the combination of upper and lower complemental dies for hole-punching and eyelet-setting, an upper holder for the upper dies, a lower holder for the lower dies, means to rotate said holders to move said hole-punching dies and eyelet-setting dies alternately into operative position, and means to reciprocate each holder.

6. A hole-punching and eyelet-setting maching having the combination of upper and lower complemental dies for hole-punching and eyelet-setting, an upper holder for the upper dies, a lower holder for the lower dies, means to rotate said holders in unison to move said hole-punching dies and eyelet-setting dies alternately into operative position, and means to reciprocate said holders in umson.

7. A hole-punching and eyelet setting machine having the combination of upper and lower slide blocks, sets of upper and lower complemental dies for hole-punching and eyelet-setting carried by said blocks, means to move said upper and lower slide blocks to dispose the dies of the set alternately in operative relation, and means to reciprocate said slide blocks toward and away from each other for the hole-punching and eyelet-setting operations.

8. A hole-punching and eyelet-setting machine having the combination of upper'and lower slide blocks arranged to support complemental punching and eyelet setting dies at the ends thereof, means to rotate said slide blocks to dispose the ends thereof alternately into operative relation, and means to reciprocate said slide blocks when in such relation.

9. A hole-punching and eyelet-setting machine having the combination of upper and lower slide blocks, two sets of con'iplemental punching and eyelet setting dies carried by said slide blocks, means to rotate said slide blocks to dispose the dies of the sets alternately in opposing relation and means to reciprocate said slide blocks when in such position.

10. A hole-punching and eyelet-setting machine having the combination of upper and lower slide blocks arranged to support complemental punching and eye-let setting dies at the ends thereof, means including intermittent gears arranged to rotate said slide blocks to dispose the ends thereof alternately into operative relation, and hold said slide blocks in such relation, and means to reciprocate said slide blocks when in such relation.

11. A hole-punching and. eyelet-setting machine having the combination of upper and lower slide blocks arranged to support complemental punching and eyelet setting dies at the ends thereof, continuously-actuated means to reciprocate said slide blocks, and intermittently-actuated means to rotate said slide blocks.

12. A hole-punching and eyelet-setting machine having the combination of a set of punching and a set of eyelet setting dies, continuously-actuated means to reciprocate the. dies of each set, and intermittentlyactuated lneans to rotate said sets of dies, whereby to move the dies of each set alternately into operative position.

15. A hole-punching and eyelet-setting machine having the combination of upper and lower slide blocks arranged tosupport complemental punching and eyelet setting dies at the ends thereof, upper and lower rota-table heads in which said slide blocks are reciprocably supported, means to retate said heads to dispose the ends of said slide blocks alternately in operative relation; and means to reciprocate said slide blocks while in such relation.

14-. A hole-punching and eyelet-setting machine having the combination of upper and lower slide blocks arranged to support complemental punching and eyelet setting dies at the ends thereof, upper and lower rotatable heads in which said slide blocks are reciprocably supported, intermittentlyactuated means to rotate said heads, whereby to dispose the ends of said slide blocks alternately in operative relation, and means to reciprocate said slide blocks while in such.

relation.

15. A hole-punching and eyelet-setting machine having the combination of upper and lower slide blocks arranged to support complemental punching and eyelet setting dies at the ends thereof, upper and lower rotatable heads in which said slide blocks are reciprocably supported, intermittentlyactuated means to rotate said heads, whereby to dispose the ends of said slide blocks alter nately in operative relation, and continuously-aetuated means to reciprocate said slide blocks while in such relation.

16. A hole-punching and eyelet-setting machine having the combination of upper and lower slide blocks arranged to support hole-punching and eyelet-setting dies at the opposite ends thereof, upper and lower rotatable heads in which said slide blocks are reciprocably received, means to rotate said slide blocks to dispose the opposite ends thereof alternately into operative relation and hold them in such relation, said means comprising driving means including intermittent gears for said rotatable heads, and means to reciprocate said slideblocks while disposed in the aforesaid relation.

17. A hole-punching and eyelet-setting machine having the combination of upper and lower slide blocks arranged to support hole-punching and eyelet-setting dies at the opposite ends thereof, upper and lower r0- tatable heads in which said slide blocks are reeiprocably received, means to rotate said slide blocks to dispose the opposite ends thereof alternately into operative relation and hold them in such relation, said means comprising driving means including intermittent gears for said rotatable heads, and means to reciprocate said slide blocks while disposed in the aforesaid relation, said reciprocating means including continuously. actuated driving means.

18. A hole-punching and eyelet-setting machine having the combinationof' a slide block arranged to support hole-punching and eyelet-setting dies at the opposed ends thereof, a rotatable head in which said slide block is reciprocable, reciprocating means for said slide block including a continuously-rotated crank shaft connected therewith, and rotat ing means for said head including inter1nittenly-actuated driving means, said crankshaft and head-rotating means arranged to rotate at substantially the same angular velocity.

19. A hole-punching and eyelet-setting machine having the combination of a slideblock arranged to support hole-punching and eyelet-setting dies at the opposite ends thereof, a rotatable head in which said slide block is reciprocable, reciprocating means for said slide block including a crank-shaft connected therewith, and continuous driving gears for said crank shaft, and rotating means for said head including intermittent driving gears associated therewith, said continuous and intermittent driving gears having substantially thesame pitch diameter.

20. A hole-punching and eyelet-setting machine having the combination of a slide block arranged to support hole-punching and eyelet-setting dies at the opposite ends thereof, a rotatable head in which sald slide block is reciprocable, a tubular driving shaft connected with said rotatable head, a crank shaft rotatably extended through said tubular drive shaft and arranged in driving connection with said reciproeable slide block, a main driving shaft, means to rotate sald head by steps including intermittent drivlng gears eonnectingsaid main drlving shaft and tubular drive shaft, andcontinuous driving gears connecting said main drive and crank shafts.-

21. A hole-punching and eyeletsetting machine having the combination of two superposed rotatable heads. slide blocks reciprocably carried by said heads and ar ranged to support hole-punching and eyeletsetting dies at the opposite ends thereof,

tubular drive shafts on which said heads are fixed, crank shafts extended through and rotatable in said tubular drive shafts and arranged in driving relation with said slide blocks, a main driving shaft, intermittent gears connecting said main driving shaft and tubular drive shafts constructed and arranged to rotate said heads in unison and also to hold said heads against rotation, and continuous driving gears connecting said main drive shaft and crank shafts arranged continuously to rotate said crank shafts.

22. A hole-punching and eyelet-setting machine having the combination of two superposed rotatable heads, slide blocks re ciprocably carried by said heads and arranged to support hole-punching and eye let-setting dies at the opposite ends thereof, tubular drive shafts on which said heads are fixed, crank shafts extended through and rotatable in said tubular drive shafts and arranged in driving relation with sa d slide blocks, a main driving shaft, intermittent gears connecting said main driving shaft and tubular drive shafts constructed and arranged to rotate said heads in unison and also to hold said heads against rotation, and continuous driving gears connecting said main drive shaft and crank shafts arranged continuously to rotate said crank shafts, and a work table disposed between said heads.

23. A hole-punching and eyelet-setting machine having the combination of two superposed rotatable heads, slide blocks re" ciprocably carried by said heads and arranged to support hole-punching and eyelet-setting dies at the opposite ends thereof, tubular drive shafts on which said heads are fixed, crank shafts extended through and rotatable in said tubular drive shafts and arranged in driving relation with said slide blocks, a main driving shaft, intermittent gears connecting said main driving shaft and tubular drive shafts constructed and arranged to rotate said heads in unison and also to hold said heads against rotation, and continuous driving gears connecting said main drive shaft and crank shafts arranged to rotate said crank shafts, means to feed eyelets into a position between said heads, and a work table disposed to support the work between said heads.

24E. A hole-punching and eyelet-setting machine having the combination of two superposed rotatable heads, slide blocks reciprocably carried by said heads and ar ranged to support hole-punching and eyelet-setting dies at the opposite ends thereof, tubular drive shafts on which said heads are fixed, crank shafts extended through and rotatable in said tubular drive shafts and arranged in driving relation with said slide blocks, a main driving shaft, intermittent gears connecting said main driving shaft and tubular drive shafts constructed and ar ranged to rotate said heads in unison and also to hold said heads against rotation, and continuous driving gears connecting said main drive shaft, and crank shafts arranged continuously to rotate said crank shafts, means including a race way to feed eyelets into a position between said heads and means actuated by said main driving shaft to reciprocate said feeding means into and away from feeding position.

25. A hole-punching and eyelet-setting machine having the combination of a rotatable head, a tubular drive shaft arranged in supporting and driving relation with said head, a slide block reciprocable in said head and arranged to support hole-punching and eyelet-setting dies at the ends thereof, said slide block having a transverse recess intermediate the ends thereof, a crank-shaft rotatably disposed in said tubular drive shaft having its crank received slidably in the transverse recess in said slide l')lock, where by to reciprocate said slide block, a continuously-actuated main driving shaft, intermit tent gears connecting said main driving shaft and tnlnilar drive shaft and constructed and arranged to rotate said tubular drive shaft and head in steps and also hold said shaft and head against rotation, and eontinuous gears connecting said main driving and crank shafts, whereby to effect continuous rotation of said crank shaft.

26. A hole-punching and eyelet-setting machine having the combination of a frame, two tubular drive shafts vertically spaced and rotatably supported in said frame, heads fixed to the forward ends of said tubular drive shafts, slide blocks reciprocably supported in said heads and arranged to support hole-punching and eyelet-setting dies at the opposite ends thereof, a main driving shaft disposed between and at one side of said heads and tubular drive shafts, means arranged alternately to rotate said heads in unison and hold said heads against rotation including intermittent driving gears connecting said main driving shaft and tubular drive shafts, crank-shafts rotatably disposed in said tubular drive shafts and having driving connection with said slide blocks, whereby to reciprocate them, and means arranged continuously to rotate said crank shafts including continuous gears connecting said main driving shaft and said crank shafts, said intermittent and continuous gears having approximately the same pitch diameter.

27. A hole punching and eyelet-setting machine having the combination of a frame, rotataliile heads supported in verticallyspaccd relation by said frame, slide blocks reciprocable in said heads arranged to sup port hole-punching and eyelet-setting dies at the ends thereof, means including inter mittent driving gears arranged alternately to rotate said heads in unison and hold said heads from rotation whereby to present alternate ends of said slide blocks in operative relation and hold them in such relation, means to reciprocate said slide blocks while in such relation, means to deliver eyelets to a position between said heads, means to reciprocate said delivery means to and from delivery position, and a work table arranged to support the work in operative position between said heads and slide blocrs.

28. A hole-punching and eyelet-setting machine having the combination of a frame, rotatable heads supported in verticallyspaced relation by said frame, slide blocks reciproeable in said heads arranged to support hole-punching and cyelet-setting dies at the ends thereof, means including intermittent driving gears arranged alternately to rotate said heads in unison and hold said heads from rotation, whereby to 1 resent alternate ends of said slide blocks in operaa'tive relation and hold them in such relation, means to reciprocate said slide blocks while in such relation, means to deliver eyelets to a position between said heads, said means including a reciprocable support, a race way carried by said support and a cam fixed to said main driving shaft arranged to reciprocate said support in timed relation with the movements of said heads and slide blocks.

29. A hole-punching and eyelet-setting machine having the combination of a frame, rotatable heads supported in verticallyspaced relation by said frame, slide blocks reciprocable in said heads arranged to support hole-punching and eyelet-setting dies at the ends thereof, means including intermittent driving gears arranged alternately to rotate said heads in unison and hold said heads from rotation, whereby to present alternate ends of said slide blocks in oper at-ive relation and hold them in such rela tion, means to reciprocate said slide blocks while in such relation, means to deliver eyelets to a position between said heads, said means including a reciprocable support, a guide rod carried by said frame and on which said support is slidable toward and away from said heads, said frame having a lateral extension slidably supported on one of said crank-shafts, a race way carried by and reciprocable with said support, and a cam fixed to said main driving shaft arranged to reciprocate said support in timed relation with the movements of said heads and slide blocks.

In testimony whereof, I have signed my name to this specification.

BICKNELL HALL. 

